Info on Flaticons

you want to use svgs in wordpress ! The tip above is a bit different. It shows you the way to use these flaticons as font-icon set !

Anyway – wordpress does not support on default the usage of svgs (something i do not understand)
If you like to be able to upload an svg you can use some code in functions.php of your child-theme – or use that brilliant plugin “svg support”

but try this first in your functions.php of child-theme:

function custom_mtypes( $m ){
    $m['svg'] = 'image/svg+xml';
    $m['svgz'] = 'image/svg+xml';
    return $m;
}
add_filter( 'upload_mimes', 'custom_mtypes' );